There were 10 ZL1's ordered with Rally Wheels.
The 3 cars that were "double" COPO's came standard with them as part of the Sports Car Conversion. These were the #3, #65 & #69 cars. The COPO 9737 included 15x7 Rallys.
The others were cars #51, 53, 58, 59, 64, 66, and 68.
They had RPO 5ZJ7 14x7" Rallys added to the build order.
(COPO Source Book by Ed Cunneen Ret.)